1 August 1991 Inhomogeneous quarter-wave transformers for a waveguide electro-optic modulator
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Proceedings Volume 1416, Laser Radar VI; (1991) https://doi.org/10.1117/12.43714
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States
Abstract
Electro-optic frequency shifters, or modulators, have been built with almost 100 percent efficiency. Conversions over 50 percent require the interaction of a circularly polarized high power microwave beam traveling synchronously with a circularly polarized laser beam in an electro-optic crystal. We describe the inhomogeneous quarter-wave transformer structures made for a CO2 laser beam modulator with a conversion efficiency in excess of 80 percent. Conventional impedance matching synthesis was adapted to include the requirements for maintaining circular polarization and handling high power. Measured results are presented.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Neville W. Harris, D. M. Wong, "Inhomogeneous quarter-wave transformers for a waveguide electro-optic modulator", Proc. SPIE 1416, Laser Radar VI, (1 August 1991); doi: 10.1117/12.43714; https://doi.org/10.1117/12.43714
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